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2 years ago

2. Two trailers, X with mass 500 kg and Y with mass 2000 kg, are being pulled at the same

Physics

1 answer:

leva [86]2 years ago

4 0

Answer:C

Explanation:

let the speed be v for both mass x and mass y

mass(x)=500kg

mass(y)=2000kg

Kinetic energy(mass(x))=(500 x v^2)/2

Kinetic energy(mass(x))=250v^2

Kinetic energy(mass(y))=(2000xv^2)/2

Kinetic energy(mass(y))=1000v^2

Ratio of kinetic energy y to x =1000v^2:250v^2

=1000v^2 / 250v^2

=4/1=4:1

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The frequency of the radio station is
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2 years ago

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Maria throws an apple vertically upward from a height of 1.3 m with an initial velocity of +2.8 m/s. Will the apple reach a frie

evablogger [386]

Answer:

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Explanation:

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No, the apple will reach 4.20041 m below the tree house.

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2 years ago

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2 years ago

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Answer:

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Explanation:

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$\tau=r\times F$

Due to the definition of cross product, the magnitude of the torque is given by:

$\tau=rFsin\theta$

Where $\theta$ is the angle between the force and lever arm vectors. So, the length of the lever arm (r) is minimun when $sin\theta$ is equal to one, solving for r:

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2 years ago

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dolphi86 [110]

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